Recently I participated in a "team competition" where the various staff sections had to compete against each other in a 4 mile ruck march, eval, treat, and evac a casualty, weapons assembly, pullups, tire flip, high crawl and SALUTE report, water jug carry, and memorization game.
I had exactly one female on my team. She did just fine on the ruck, litter carry. However she couldn't do a single pull up. She is a senior NCO, multiple combat tours under her belt, and she could not perform a single pullup. For her entire career there has never been a single requirement for her to actually perform pullups.
First off, there are some jobs where upper body strength is a requirement. Infantry and Field Artillery immediately come to mind, although Tankers have to handle some pretty hefty rounds in pretty small compartments as well.
Secondly, there are some jobs that do not require upper body strength, like being the tank driver, or a air ambulance medic.
Third, I've never had to do a pullup, pushup, or situp in combat. But if I were going to assault a compound in a city I would want the men around me to be able to do pullups, in case we needed to get over a wall, negotiate around a blocked stairwell, or do something other than take the easy route.
In my career there have been requirements to do pullups. In OCS they were required to be done before and after chow, although it wasn't a "pass/fail" event. In Ranger school, it was a pass/fail event. If you don't do your six perfect pullups after pushups, situps, and running five miles, so sorry try again some other time.
I'm sure some feminist will tell me that by including a team pullup event we were automatically "marginalizing our female minority" or some such bull. I don't care about what you have between your legs, or which team you bat for, or any other sort of identifier that people want to slap on in order to get special treatment.
Erin Pallette (see sidebar for Lurking Rhythmically) has been discussing this on Facebook, and the common theme is that "don't lower the standards" which most women have voiced. The problem with not lowing the standards is that a lot of women will fail. It doesn't matter that half of all Ranger students already fail, no, someone will get all butt hurt that girls are failing and dictate a standards change, I'm sure of it.
But none of this is addressing any tactical need. We don't need women in the Infantry. We need women in Female Engagement Teams, Military Police, MI Interrogators, Civil Affairs, MISO, Medics, and even in jobs that can be done by males like admin and logistics. We've got the "kill the enemy" part of military operations down pat, we don't need women to do that. We need women for all the peacekeeping crap that comes after.